Combined die and pattern



A Nov. 2, 1937. F.; L. FOSTER 2,097,693

i C.OIVBINED DIE AND PATTERN I I l Filed Oct. 16, 1934 fnl/enof: Fred L.Fast e4' l 22)/ (722W /9 t#tto/Hey Patented Nov. 2, 1937 UNITED STATESPATENT OFFICE 1 Claim.

The invention relates to improvements in a combined die and pattern forcutting irregular congurations of articles, such as shoe parts, shirts,gloves, etc., of which the following is a 5 specication:

The invention consists of a novel means of supporting a pattern in a dieby rigidly securing a reenforcing member having suitable supporting lugsformed integral therewith to the inner surface of the die whichalternately support both sides of the pattern to make a substantial anddurable structure.

The object of the invention is to provide a supporting means on theinner surface of a die for a pattern of any configuration to make a unitstructure which is easy to manufacture at a maX- imum durability and aminimum cost.

Referring to the gures:

Fig. 1 is a plan view of the die and pattern showing the support.

Fig. 2 is a side elevation of the die shown in a cutting position in achecking machine.

Fig. 3 is a part vertical section of the die and pattern showing thesupporting member.

Fig. 4 is a plan view of the same.

Fig. 5 is a side elevation of the supporting member.

Fig. 6 is a plan view of the same.

Fig. 7 is a side elevation of the supporting member before thesupporting lugs are bent into position.

Fig. 8 is a fragmentary plan View of the die and pattern with the lugsbent into position.

Referring to the drawing which illustrate the improvements in supportsfor a combined pattern and double-edged die used for cutting materialsuch as leather, cloth or ber in a checking machine towithstand themaximum cutting strains with a lightweight die. The die and pattern areindicated by the numerals I and II respectively. The die is made of thinstrip material and preferably with two cutting edges I2 and I3 to permitleft and ri-ght hand articles to be formed with the same die. The dieoperates against the stock I4 which can be of any suitable material.

The stock is placed on the cutting block I and the die is placed on thestock, as shown in Fig. 2 ,of the drawing, preparatory to the cuttingoperation. To force the die II through the stock I4 a reciprocatingmovement of the operating.

head I6 in its downward movement operates against the die forcing itthrough the stock, and the opposite upward movement away from the dieallows the next operation to take place.

The die is made of a thin material which can be formed and manipulatedaround the pattern by machine or hand practice in contradistinction tothe heavy forged dies now in use.

Because the die is made of thin material, the operating head I6 and thecutting block I5 are made of soft material so the die can sink into itand cushion the impact so the edges I2 and I3 will not be injured. Thedie is removed from the block by a special spring device to prevent themfrom sticking in the soft material.

The embodiment of the invention consists of a double-edge die made ofstrip material which can be readily formed to the contour of the patternII of any conguration: that is, any form can be made and the die can beplaced around it due to the exible nature of the material. The noveltyresides in providing a suitable support for the pattern inside the dieto withstand the working strains and reenforce the die when in use.

The reenforcing member I'I is also made of strip material which can beformed around the pattern and secured to the inner surface of the dieIll. Formed in the strip material are the supporting members I8 and I9.These supporting members are bent over at right angles to the innersurface of the die and reenforcing member, of which they are a part, atright angles and alternately extend over and under the pattern and allthe members are welded together to make a unit construction forsupporting a pattern to a die.

The reenforcing strip before it is secured to a die, is machined to forma series of two V-shaped slots on both edges of the reenforcing strip inalternate positions leaving the supporting members I8 and I9free to bebent at right angles to serve as the supporting member for the pattern,one set on the top side of the pattern, and one set on the lower side ofthe pattern.

In operation and construction the die III is made of flexible stripmaterial having two edges I2 and I3 and is known as a double-edge diewhich can be used for right and left articles.

The pattern is made in any configuration and after the supports I8 andI9 are formed in the reenforcing member I1 it is bent around the patternand welded. Following this operation, the die is now ready foroperation.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

In a double edge die in combination with a pattern of the shoe type, asupporting member secured to the inside surface of the die, lugs formedin the supporting member which alternately support both sides of thepattern.

FRED L. FOSTER.

